EMSL Arrows - An Easier Way to Use NWChem

The goal of this project is to provide EMSL users and DOE scientists and engineers with an open-source computational chemistry and materials tool called EMSL Arrows. EMSL Arrows is a software package that combines NWChem, SQL and NOSQL databases, and email (in the future also social networks, e.g. Twitter, Tumblr) that simplifies molecular and materials modeling and makes these modeling capabilities accessible to all scientists and engineers.

EMSL Arrows is very simple to use. The user just emails chemical reactions to arrows@emsl.pnnl.gov and then an email is sent back with thermodynamic, reaction pathway (kinetic), spectroscopy, and other results. More details can be found at "EMSL Arrows".

NWChem 6.6 has been released

NWChem team is pleased to announce the 6.6 release. We would like to express our sincere thanks to all the authors and contributors who made this release possible. This release includes several new capabilities and bug fixes.
The key features of NWChem 6.6 include:

New qmd module AIMD (NVT, NVE) for molecular and finite systems. It can be used with all Gaussian basis set ground and excited-state methods in NWChem that can provide an energy/gradient (analytic or numerical). It can also be combined with COSMO. A qmd_analysis standalone code is also provided to analyze the trajectory data.

York-Karplus approach in COSMO (keywords to invoke the Klamt-Schuurmann approach is included in the documentation). With the extensive changes that were made in the COSMO module, the Klamt-Schuurman approach is not perfectly backward compatible with the previous 6.5 release. Some cases show small differences in the energies. We are working on a patch for backward compatibility.

Integration of FEFF6 library into AIMD (FEFF is an automated program for ab initio multiple scattering calculations of X-ray Absorption Fine Structure (XAFS), X-ray Absorption Near-Edge Structure (XANES) and various other spectra for clusters of atoms developed at the University of Washington (John Rehr's group) http://feffproject.org/ ).

New implementation of the PAW method into PSPW. Simple to use, just include PAW potential library in the PSPW simulation.

NWChem among 13 science projects selected to run on the 300-petaFLOPS Summit

In preparation for next-generation supercomputer Summit, the Oak Ridge Leadership Computing Facility (OLCF) selected 13 partnership projects into its Center for Accelerated Application Readiness (CAAR) program. A collaborative effort of application development teams and staff from the OLCF Scientific Computing group, CAAR is focused on redesigning, porting, and optimizing application codes for Summit’s hybrid CPU–GPU architecture. Researchers from Pacific Northwest National Laboratory and IBM Almaden Research Center aim to scale the NWChem application to utilize GPU accelerators to provide benchmark energies to allow for accurate parameterization of force fields for glycans as well as develop and disseminate an open-source database of accurate glycan conformational energies. New implementations of high-accuracy methods capable of taking advantage of Summit computational resources will significantly shift the system-size limit tractable by very accurate yet expensive methods accounting for the inter-electron correlation effects.
https://www.olcf.ornl.gov/caar/

NWChem Tutorial at NSCCS

Two day workshop (April 21st-22nd 2015) will introduce researchers in the field of computational chemistry to the NWChem software package. NWChem aims to provide its users with computational chemistry tools that can handle (bio)molecules, nanostructures, and solid-state from quantum to classical, and all combinations thereof.
http://www.nsccs.ac.uk/NWChem2015.php

EMSL Named an Intel Parallel Computing Center

Intel has named EMSL, located at Pacific Northwest National Laboratory, as an Intel Parallel Computing Center. As an Intel PCC, EMSL’s scientific computing team will work with Intel to modernize the codes of NWChem to take advantage of technological advancements in computers. NWChem is one of the Department of Energy’s premier open-source computational chemistry software suites and has been developed at EMSL.
The modernized codes will be applicable to several science drivers including studies of aerosol particles, soil chemistry, biosystems, hormone-cofactor functionality in proteins, ionic liquids in cells, spectroscopies, new materials and large-scale reaction mechanisms.
http://www.emsl.pnl.gov/emslweb/news/emsl-named-intel%C2%AE-parallel-computing-center.

NWChem SC2014 paper

This paper presents the implementation and performance of the highly accurate CCSD(T) quantum chemistry method on the Intel Xeon Phi coprocessor within the context of the NWChem computational chemistry package. The widespread use of highly correlated methods in electronic structure calculations is contingent upon the interplay between advances in theory and the possibility of utilizing the ever-growing computer power of emerging heterogeneous architectures.
We discuss the design decisions of our implementation as well as the optimizations applied to the compute kernels and data transfers between host and coprocessor.
We show the feasibility of adopting the Intel Many Integrated Core Architecture and the Intel Xeon Phi coprocessor for developing efficient computational chemistry modeling tools.
Remarkable scalability is demonstrated by benchmarks. Our solution scales up to a total of 62560 cores with the concurrent utilization of Intel Xeon processors and Intel Xeon Phi coprocessors. New CCSD(T) implementation is available in the 6.5 release of NWchem
http://sc14.supercomputing.org/schedule/event_detail?evid=pap217

NWChem 6.5 has been released

NWChem team is pleased to announce the 6.5 release. We would like to express our sincere thanks to all the authors and contributors who made this release possible. This release includes several new powerful capabilities.

NWChem 6.5 soon to be released

We have now entered the NWChem code freeze for release 6.5. Please refrain from checking in new development code and limit checkins to bug fixes. As of yet we have not branched the release. The plan is to stabilize the current development and branch the release later (end of August/beginning of September). This avoids duplication of work and checking fixes in in two places (the development branch and the release branch) as well as weird inconsistencies that may arise from forgotten checkins.

NWChem 6.3 release now available

On May 17, 2013 NWChem version 6.3 was released. An overview of the changes, added functionality, and bug fixes in this latest version can be found here.

NWChem highlighted in DOE Pulse

NWChem's efforts to solve chemistry challenges with high performance computing were highlighted in DOE Pulse.

NWChem 6.1.1 bug fix release now available

On June 26, 2012 NWChem version 6.1.1 was released. This version is solely a bug fix release with the same functionality as NWChem 6.1. A list of bug fixes in this latest version can be found here.

NWChem Schedules Tutorials and Hands-On Training

Centers or sites interested in hosting a workshop or tutorial with or without hands-on training, please contact Karol Kowalski.

The NWChem developers will be holding:

Tutorials are being planned in the US, India, and Italy. Updates will be provided soon.

A three-day tutorial and hands-on training at A*STAR in Singapore on October 23-25, 2012

A two-day tutorial and hands-on training at NCSA in Urbana on December 1-2, 2010

A 2-hour tutorial at the Pacific Northwest AVS meeting held at PNNL on September 15, 2010

NWChem 6.1 has been released

On January 27, 2012 NWChem version 6.1 was released. An overview of the changes, added functionality, and bug fixes in this latest version can be found here.

PCCP Perspective Published

Developers of NWChem at EMSL were the lead authors on a perspective article in the highly ranked PCCP journal on utilizing high performance computing for chemistry and parallel computational chemistry. The article and cover were published in Phys. Chem. Chem. Phys. 12, 6896 (2010).

NWChem released as open-source

On September 30, 2010 NWChem version 6.0 was released. This version marks a transition of NWChem to an open-source software package. The software is being released under the [Educational Community License 2.0] (ECL 2.0). Users can download the source code and a select set of binaries from this site.